Comparing (very generally) the Sangiovese-based wines from Morellino di Scansano to Chianti Classicos, I'd have to say that the primary difference is that the Morellinos tend to have a more loamy earthiness and a darker-toned fruitiness, as opposed to the gravelly/schisty earthiness and piercing, more high-toned cherry fruit of the CC's. This Morisfarms (weird name) is a really nice example of a good Morellino.
Sultry dark ruby color. Medium intensity nose of earthy, dark berries, scorched earth, and cedar. Soft, ripe, and full-flavored, with lots of earthy minerals and brambly berry flavors the last to leave their impression in the mouth. Very good example of this rustic style of Sangiovese. 88. Imported by Polaner Selections. Can't remember where I got this, but I know it was under $20.